class aux_functions
{
  public:
    
    //inline	aux_functions();
    
    inline mat 			convert2Arma(cv::Mat cvImage);
    inline mat 			convert2Arma_nor(cv::Mat cvImage);
    inline mat			convert2Arma(cv::Mat cvImage, double rescal);
    inline uvec			rand_vector(int n, int min, int max);
};